Measure the circumference of your hand around the widest part of the palm not including the thumb, just below the base of the fingers. Giordana gloves are race style, if you have "fat" hands you may want to size up.

Tech Specs

the winter glove I have been looking for

A glove with a lot of dexterity and considerable warmth sans the extra bulk of true cold-weather mitts. An extended cuff keeps these tucked nicely up your wrists so you are eliminating the chance of errant wind seeping in. These gloves are warm! And therefore your hands will sweat. Make sure they are given the chance to thoroughly dry out between uses. And as someone else said, I nice swatch of soft terry cloth would be nice along the thumb line to deal with wintery runny noses.